justinhimself/p910nd repository overview

⁠p910nd

p910nd is a small printer daemon intended for diskless platforms that does not spool to disk but passes the job directly to the printer. Normally a lpr daemon on a spooling host connects to it with a TCP connection on port 910n (where n=0, 1, or 2 for lp0, 1 and 2 respectively). p910nd is particularly useful for diskless platforms. Common Unix Printing System (CUPS) supports this protocol, it's called the AppSocket protocol and has the scheme socket://. LPRng also supports this protocol and the syntax is lp=remotehost%9100 in /etc/printcap.

⁠Usage

• The -f option can be used to specify a different printer device, e.g. /dev/usblp0.
• The -i option can be used to specify binding to one address instead of all interfaces which is the default.
• The -b option turns on bidirectional copying.
• The -v option shows the version number.
• The -d option causes the daemon to run in the foreground in standalone mode and prints log messages to stdout for debugging.

find more from man 8 p910nd

⁠Examples

docker run -d \
  --name=p910nd \
  --privileged \
  -p 9100:9100 \
  -v /dev/usb/lp0:/dev/usb/lp0 \
  -v /var/lock/p910nd:/var/lock/p910nd \
  justinhimself/p910nd:latest '-b' '-d' '-f' '/dev/usb/lp0'

⁠Authors

kenyapcomau/p910nd⁠
Ken Yap and others

⁠License

See the LICENSE⁠ file for license rights and limitations (GPL2).